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annual

Water Lettuce

Pistia stratiotes

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Water Lettuce (Pistia stratiotes) at Platt Hill Nursery

Water Lettuce foliage

Water Lettuce foliage

(Photo courtesy of NetPS Plant Finder)

Plant Height:  4 inches

Flower Height:  6 inches

Spread:  14 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Other Names:  Water Cabbage

Description:

This water plant has interesting square to fan shaped foliage that is velvety and beautifully ribbed; flowers are somewhat inconspicuous; excellent for edging a water feature or pond; watch for aphids; invasive in frost free areas

Ornamental Features

Water Lettuce's attractive tomentose square leaves remain bluish-green in color throughout the year. It features subtle chartreuse tubular flowers with creamy white overtones rising above the foliage from early to late summer. The fruit is not ornamentally significant.

Landscape Attributes

Water Lettuce is an herbaceous annual with a ground-hugging habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep, and is best cleaned up in early spring before it resumes active growth for the season. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Spreading
  • Invasive
  • Insects

Water Lettuce is recommended for the following landscape applications;

  • Water Gardens
  • Container Planting

Planting & Growing

Water Lettuce will grow to be only 4 inches tall at maturity extending to 6 inches tall with the flowers, with a spread of 14 inches. Its foliage tends to remain low and dense right to the ground. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.

This plant does best in full sun to partial shade. It is an excellent choice for very wet locations or locations with some standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This species is not originally from North America.

Water Lettuce is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its spreading habit of growth, it is ideally suited for use as a 'spiller' in the 'spiller-thriller-filler' container combination; plant it near the edges where it can spill gracefully over the pot. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Container  Water 
Applications
Flowers  Foliage Color 
Ornamental Features

This Plant Finder tool is an online catalog representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact your nearest Platt Hill Nursery store for current availability. It does not include our entire inventory of plants, so be sure to visit us to see varieties that may not be represented on this list.



Bloomingdale: 222 W Lake St, Bloomingdale, IL 60108

Carpentersville: 2400 Randall Rd, Carpentersville, IL 60110

Mon - Sat: 9am - 6pm; Sun: 10am - 5pm

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